/*
 * Copyright (c) 1997, 1998, 2003, 2006 Aleksandar Samardzic
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are
 * met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. The name of the author may not be used to endorse or promote products
 *    derived from this software without specific prior written permission.
 * 
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 * DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGE.
 */

#ifndef DATA_ACCESS_STRUCTURE_H
#define DATA_ACCESS_STRUCTURE_H

#include "primitive.h"
#include "ray.h"

/* DataAccessStructure class */
typedef struct _PDataAccessStructure {
	void            (*Clean) (struct _PDataAccessStructure *);
	PPrimitive     *(*Intersect) (struct _PDataAccessStructure *,
				      PRay *);
} PDataAccessStructure;

/* DataAccessStructure class public operations */
#define DATAACCESSSTRUCTURE_DECLARE(dataAccessStructure) \
    PDataAccessStructure    dataAccessStructure= \
        {NULL, \
        NULL};
#define DATAACCESSSTRUCTURE_DECLAREDYNAMIC(dataAccessStructure) \
    (dataAccessStructure).Clean=NULL, \
    (dataAccessStructure).Intersect=NULL;

#endif
